9902.12.04 - Fasteners of nylon or of polypropylene, with a filament length of 6 mm or more but not over 127 mm, presented on clips each holding the quantity of 25, 50 or 100 pieces, suitable for use in a mechanical attaching device (provided for in subheading 3926.90.85)

This HTS category, 9902.12.04, pertains to specialized fasteners manufactured from nylon or polypropylene. These fasteners are specifically designed with a filament length ranging from 6 mm to 127 mm. A key distinguishing feature is their presentation: they are provided on clips, with each clip containing a precise quantity of either 25, 50, or 100 pieces. Crucially, these fasteners must be suitable for use in a mechanical attaching device, aligning with the provisions found under subheading 3926.90.85 for other plastic articles.

Given its position within Chapter 99, which deals with temporary legislation and modifications, this category represents a specific, time-limited tariff treatment for these particular fasteners. Unlike the broader product categories found at the root of the HTS database, such as live animals (Chapters 01), this section focuses on detailed specifications and potential duty relief or specific restrictions applicable to these manufactured plastic fasteners. The emphasis is on the precise material, dimensions, packaging, and intended application, differentiating them from general plastic articles or other types of fasteners.

As a leaf node, HTS 9902.12.04 does not have further subdivisions. Therefore, understanding its scope relies on the detailed description provided. Classification within this code is contingent upon meeting all specified criteria, including the material (nylon or polypropylene), filament length range, clip presentation with specified piece counts, and intended use in mechanical attaching devices. Any deviation from these precise requirements would necessitate classification under a different HTS code.